Accelerated rendering with temporally interleaved details

摘要

One embodiment of the invention sets forth a mechanism for interleaving consecutive display frames rendered at complementary reduced resolutions. The GPU driver configures a command stream associated with a frame received from a graphics application for reduced frame rendering. The command stream specifies a nominal resolution at which the frame should be rendered. The reduced resolution associated with the frame is determined based on the reduced resolution of an immediately preceding frame (i.e., the complementary reduced resolution), if one exists, or on GPU configuration information. The GPU driver then modifies the command stream to specify the reduced resolution. The GPU driver also inserts an upscale command sequence specifying the nominal resolution into the command stream. Once the command stream is configured in such a manner, the GPU driver transmits the command stream to the GPU for reduced rendering.

主权项

1. A computer-implemented method for configuring a graphics rendering command stream to implement reduced frame rendering, the method comprising:
receiving a first graphics rendering command stream associated with a first frame of graphics data; specifying a nominal resolution at which the first frame is to be rendered; determining a reduced resolution for the first frame based on configuration information associated with a graphics processing unit, the reduced resolution specifying a first reduced pixel count in a first screen direction and a first non-reduced pixel count in a second screen direction; indicating to the graphics processing unit that the first frame is to be rendered at the reduced resolution and then upscaled to the nominal resolution; and determining, based on the configuration information associated with a graphics processing unit, that an interleaving function for reduced frame rendering is active, wherein the first frame is adjacent in time to a second frame that is rendered at a second reduced resolution specifying a second non-reduced pixel count in the first screen direction and a second reduced pixel count in the second screen direction.